Osiris

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Mythology The ancient Egyptian god whose annual death and resurrection personified the self-renewing vitality and fertility of nature.

Century Dictionary and Cyclopedia

1. n. A principal Egyptian god, personifying the power of good and the sunlight, united in history and in worship in a sacred triad with Isis as his wife and Horus as their child. He is son of Seb and Nut, or Heaven and Earth. His antagonist is Set, the deity of evil or darkness, by whom he is slain; but he is avenged by Horus, and reigns in the lower world. With him was formally identified every departed soul in its nether abode, to be protected by him in the necessary conflict with the genius of evil. The worship of Osiris was extended, at about the beginning of the Christian era, over Asia Minor, Greece, and Rome. In art Osiris is usually represented as a mummy, wearing the crown of Upper Egypt, often flanked by ostrich-plumes. The accompanying cut represents a bronze figurine in the Metropolitan Museum of Art, New York.
2. n. [NL.] In zoology, a genus of hymenopterous insects.

Wiktionary

1. n. The Egyptian god of the dead and of the underworld.

GNU Webster's 1913

1. n. (Myth.) One of the principal divinities of Egypt, the brother and husband of Isis. He was figured as a mummy wearing the royal cap of Upper Egypt, and was symbolized by the sacred bull, called Apis. Cf. Serapis.

WordNet 3.0

1. n. Egyptian god of the underworld and judge of the dead; husband and brother of Isis; father of Horus